During the afternoon storm activity from East Central Colorado spread into Northwest Kansas. The storm intensity increased as the storms moved into Kansas, but turned into more of a wind threat than a hail threat.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GLD wrote it up.
During the afternoon storm activity from East Central Colorado spread into Northwest Kansas. The storm intensity increased as the storms moved into Kansas, but turned into more of a wind threat than a hail threat. The peak wind gust reported was 77 MPH measured at the Bird City airport. The thunderstorms winds blew down power lines north of Blakeman in Rawlins County, and were responsible for blowing dust at a couple locations. The largest hail size reported was nickel near Weskan.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Goodland, KS wrote its last area forecast discussion before the first event at Jun 22, 12:10 PM CST, 1 hour 52 minutes earlier.
Area Forecast Discussion National Weather Service Goodland KS 1210 PM MDT Fri Jun 22 2018 .UPDATE... Issued at 1145 AM MDT Fri Jun 22 2018 As of 18Z, deep convection in northeast Colorado was progressing southeast toward northwest KS - and was already in the process of growing upscale. Observational trends indicate that the most favorable insolation/low-level moisture will be along/south of I-70 this afternoon -- and this is where the greatest severe weather potential will exist. Expect damaging winds to be the main threat, though isolated instances of large hail will be possible in assoc/w embedded rotating updrafts, primarily before significant upscale growth occurs. && .SHORT TERM...(Today and tonight) Issued at 327 AM MDT Fri Jun 22 2018 The primary concerns in the short term are the possibility of severe thunderstorms across the area both this afternoon and evening and again on Sunday afternoon and evening. An upper trough moves across the central high plains this evening with zonal flow on Saturday ahead of the stronger upper low expected to emerge east of the Rockies over the central and northern high plains on Sunday. Storms will develop rapidly over eastern Colorado this afternoon in the surface convergent area of upslope flow that transitions to a southerly direction and transports near 60 degree dewpoint air into the forecast area. Storms will migrate across mainly the western and southwestern portions of the forecast area as a surface low consolidates in the vicinity of the panhandle region and moves east overnight. A few storms are expected on Saturday night into Sunday morning, but the main thunderstorm activity will develop on Sunday afternoon as the stronger upper low emerges east of the Rockies. Another surface low develops in the panhandle region with a strong low level southerly jet that transports mid 60 dewpoint air into the region along with a warm frontal boundary. Strong destabilization is expected as the low brings in cooler temperatures aloft in combination with the ample low level moisture and a warm front moving into the region. Expect storms to become more widespread through Sunday afternoon and evening with storms becoming severe and eventually consolidating into an MCS as they move out of the forecast area by late Sunday. .LONG TERM...(Monday through Thursday) Issued at 250 AM MDT Fri Jun 22 2018 A trough centered over the Tri-state region Monday is expected to move northeast towards the upper Midwest Monday night. As the trough exits the region, thunderstorm chances move eastward. Zonal flow aloft replaces the trough leading to above normal temperatures through the end of the week and drier conditions. A shortwave embedded within a forming ridge moves over the region Wednesday night and Thursday morning bringing slight chances of thunderstorms. Ridge building begins Wednesday night as a trough forms over the western CONUS. This is where noticeable spatial differences start to occur between the GFS and ECMWF. The GFS seems to be more progressive while the ECMWF builds a deeper trough over the west coast. && .AVIATION...(For the 18Z TAFS through 18Z Saturday afternoon) Issued at 1145 AM MDT Fri Jun 22 2018 Thunderstorms were already developing and intensifying in northeast Colorado at 17Z. Activity is expected to grow upscale and track ESE/SE through northwest Kansas this afternoon and will affect the GLD terminal between 19-23Z. Large hail and surface wind gusts up to 60 knots will be possible. Confidence is lower that thunderstorms will affect the MCK terminal. Aside from thunderstorms this afternoon and evening, VFR conditions will otherwise prevail. Winds at the MCK terminal are expected to be variable at 6-12 knots for the majority of the TAF period. Initially south winds at GLD are expected to become variable at 6-12 knots after thunderstorms this evening/tonight. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. CO...NONE. NE...NONE. && UPDATE...VINCENT SHORT TERM...LOCKHART LONG TERM...BLN AVIATION...VINCENT
Hazardous Weather Outlook...UPDATED National Weather Service Goodland KS 1234 PM MDT Fri Jun 22 2018 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-231845- Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins- Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove- Greeley-Wichita-Dundy-Hitchcock-Red Willow- 1234 PM MDT Fri Jun 22 2018 /134 PM CDT Fri Jun 22 2018/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... ...Severe Thunderstorm Watch 198 is in effect until 8 pm MDT /9 pm CDT/ this evening for portions of the Tri-State area... Thunderstorms in northeast Colorado will track southeast through northwest Kansas this afternoon and early this evening. These storms will be capable of producing damaging wind gusts up to 70 mph and a few instances of golf ball size hail. Locally heavy rain and isolated flash flooding cannot be ruled out. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY... ...Enhanced Risk for Severe Thunderstorms on Sunday... Severe thunderstorms capable of producing large hail and damaging winds will be possible across much of the Tri-State area Sunday afternoon and evening. Locally heavy rainfall and flash flooding will also be possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required. Vincent
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
1243 PM MDT FRI JUN 22 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1237 PM TSTM WND GST YUMA 40.12N 102.72W
06/22/2018 E50 MPH YUMA CO EMERGENCY MNGR
WIND GUSTS ESTIMATED AT 50 MPH.
&&
VINCENTPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
144 PM MDT FRI JUN 22 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0140 AM HAIL 2 W KIRK 39.62N 102.63W
06/22/2018 E0.50 INCH YUMA CO TRAINED SPOTTER
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
202 PM MDT FRI JUN 22 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0154 PM TSTM WND GST 2 NW HALE 39.66N 102.16W
06/22/2018 M48 MPH YUMA CO MESONET
&&
RRHThe Goodland radar (KGLD), 61 km away, was scanning. The volume nearest the first event began at 20:02 UTC.
15 thunderstorm wind, 3 hail. Local standard time, as filed.
A tree branch eight inches in diameter was broken off of the tree.
Visibility in blowing dust was reduced to roughly a mile.
Sustained winds of 48 MPH occurred with these gusts.
These winds created blowing dust before the rain started.
Winds from a thunderstorm blew down power lines. No information given as to how many poles were damaged.
Estimated the wind gusts to be 60-65 MPH. A few shingles were blown off the roof of the house.
Pea to dime size hail also occurred with the wind.
The hail also occurred with estimated wind gusts of 65 MPH.
Brownout conditions reported due to the blowing dust.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2018Every state in 2018This day in weather historyWarnings in Kansas, June 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 768787, 768790, 768791, 768792, 768793, 768794, 768795, 768796, 768788, 768798, 768783, 768800, 768784, 768808, 768801, 768804, 768802, 768805.